RH

Ryouhei Hayama

JT Jtekt: 18 patents #37 of 1,969Top 2%
KC Koyo Seiko Co.: 14 patents #18 of 749Top 3%
SS Sumitomo (Sei) Brake Systems: 1 patents #7 of 18Top 40%
Overall (All Time): #113,443 of 4,157,543Top 3%
32
Patents All Time

Issued Patents All Time

Showing 26–32 of 32 patents

Patent #TitleCo-InventorsDate
6516916 Steering device Masaya Segawa, Shirou Nakano, Katsutoshi Nishizaki, Takanobu Takamatsu, Masanori Arima 2003-02-11
6470250 Vehicle attitude control apparatus Katsutoshi Nishizaki, Shiro Nakano, Masaya Segawa, Kazuhiro Kato 2002-10-22
6450592 Motor vehicle braking system Katsutoshi Nishizaki, Shiro Nakano, Masaya Segawa, Kazuhiro Kato 2002-09-17
6442462 Motor vehicle steering system Katsutoshi Nishizaki, Shiro Nakano, Masaya Segawa 2002-08-27
6415215 Vehicle attitude control apparatus Katsutoshi Nishizaki, Shiro Nakano, Masaya Segawa 2002-07-02
6382345 Electric power steering system Tomoyasu Kada, Shiro Nakano 2002-05-07
6364051 Electric power steering system Tomoyasu Kada, Shiro Nakano, Katsutoshi Nishizaki, Takanobu Takamatsu, Masaya Segawa 2002-04-02